Question

我在PHP documentation找到了代码。这似乎是一个很好的简单代码，它可以检测到谷歌浏览器，Firefox，IE和Safari，但它无法检测到Opera。

OUTPUT in OPERA:
Your browser: Google Chrome 45.0.2454.93 on windows reports: 
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.93 Safari/537.36 OPR/32.0.1948.69

需要帮助修改此代码，以便它可以检测到歌剧。

  <?php
    function getBrowser()
    {
        $u_agent = $_SERVER['HTTP_USER_AGENT'];
        $bname = 'Unknown';
        $platform = 'Unknown';
        $version= "";

        //First get the platform?
        if (preg_match('/linux/i', $u_agent)) {
            $platform = 'linux';
        }
        elseif (preg_match('/macintosh|mac os x/i', $u_agent)) {
            $platform = 'mac';
        }
        elseif (preg_match('/windows|win32/i', $u_agent)) {
            $platform = 'windows';
        }

        // Next get the name of the useragent yes seperately and for good reason
        if(preg_match('/MSIE/i',$u_agent) && !preg_match('/Opera/i',$u_agent))
        {
            $bname = 'Internet Explorer';
            $ub = "MSIE";
        }
        elseif(preg_match('/Trident/i',$u_agent))
        { // this condition is for IE11
            $bname = 'Internet Explorer';
            $ub = "rv";
        }
        elseif(preg_match('/Firefox/i',$u_agent))
        {
            $bname = 'Mozilla Firefox';
            $ub = "Firefox";
        }
        elseif(preg_match('/Chrome/i',$u_agent))
        {
            $bname = 'Google Chrome';
            $ub = "Chrome";
        }
        elseif(preg_match('/Safari/i',$u_agent))
        {
            $bname = 'Apple Safari';
            $ub = "Safari";
        }
        elseif(preg_match('/Opera/i',$u_agent))
        {
            $bname = 'Opera';
            $ub = "Opera";
        }
        elseif(preg_match('/Netscape/i',$u_agent))
        {
            $bname = 'Netscape';
            $ub = "Netscape";
        }

        // finally get the correct version number
        // Added "|:"
        $known = array('Version', $ub, 'other');
        $pattern = '#(?<browser>' . join('|', $known) .
         ')[/|: ]+(?<version>[0-9.|a-zA-Z.]*)#';
        if (!preg_match_all($pattern, $u_agent, $matches)) {
            // we have no matching number just continue
        }

        // see how many we have
        $i = count($matches['browser']);
        if ($i != 1) {
            //we will have two since we are not using 'other' argument yet
            //see if version is before or after the name
            if (strripos($u_agent,"Version") < strripos($u_agent,$ub)){
                $version= $matches['version'][0];
            }
            else {
                $version= $matches['version'][1];
            }
        }
        else {
            $version= $matches['version'][0];
        }

        // check if we have a number
        if ($version==null || $version=="") {$version="?";}

        return array(
            'userAgent' => $u_agent,
            'name'      => $bname,
            'version'   => $version,
            'platform'  => $platform,
            'pattern'    => $pattern
        );
    }

    // now try it
    $ua=getBrowser();
    $yourbrowser= "Your browser: " . $ua['name'] . " " . $ua['version'] . " on " .$ua['platform'] . " reports: <br >" . $ua['userAgent'];
    print_r($yourbrowser);
    ?>

Answer 1

在一些变化之后它现在正在运作......

我改变了这部分......

 elseif(preg_match('/Opera/i',$u_agent))
        {
            $bname = 'Opera';
            $ub = "Opera";
        }

到

 elseif(preg_match('/OPR/i',$u_agent))
        {
            $bname = 'Opera';
            $ub = "OPR";
        }

Answer 2

只需使用文档get_browser中提供的基本功能。

<?php
echo $_SERVER['HTTP_USER_AGENT'] . "\n\n";

$browser = get_browser(null, true);
print_r($browser);
?>

为了使其正常工作， php.ini 中的browscap配置设置必须指向系统上 browscap.ini 文件的正确位置。

browscap.ini不与PHP捆绑在一起，您可以下载它here

Answer 3

好吧，歌剧

首先检查Opera，然后检查Chrome，因为$ u_agent在$ u_agent的结果中显示Chrome /，Safari /和OPR /。因此，通过更改@aabejero建议的代码，在使用Internet Explorer后立即检查Opera。

elseif(preg_match('/OPR/i',$u_agent))
        {
            $bname = 'Opera';
            $ub = "OPR";
        }

如果您有时不在Opera中执行此操作，则会将Google Chrome浏览器作为浏览器

浏览器检测PHP中的代码而不检测Opera

3 个答案: